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No. 614,707. Patented Nov. 22, |898. A. E. nos.

METER Eon WATER, am.

(Application ld Sept. 7, 1897.)

(No Model.) 4 Sheets-Sheet 2.

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A. E. nos;

METER FUR WATER, 8m. v

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No. 6|4,'707. Patented Nov. 22, |898.

A; E. DUBBS. METER FOR WATER, &c.

(Appliation led Sept. 7, 1897.)

(No Model.)

4 Sheets-Sheet 4.

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ARCHIBALD E. DOBBS, OF LONDON, ENGLAND.

METER FOR WATER, &.O.

' SPECIFICATION forming part of Letters Patent No. 614,707, dated November 22, 1898.

Application led September 7, 1897- Serial No. 650,792. (No model.)

To all whom t may concern.-

Beit known that I, ARCHIBALD EDWARD DOBBs, master of arts and barrister at law, a subject of the Queen ot Great Britain, residing at 9 Old Square, Lincolns Inn, and 35 Wetherby Mansions, Earls Oourt Square, London, in the county of Middlesex, England, have invented certain new and useful Improvements in Meters for Vater and other Fluids, of which the following is a specication.

According to this invention I construct a 'fluid-meter of three or other larger number, preferably an odd number, of cylinders, each fitted with a piston and each end of each cylinder capable of being put alternately into connection with the supply and with the delivery through suitable valves in such a way that when one end of a cylinder is open to the supply its other end is open to the delivery. The movement of the piston of one cylinder I make to shift the position of the valves of the next cylinder, and so on continuously.

Figure I of the drawings annexed isan elevation, with the outer casing in section, of a meter constructed in the above manner. Fig. 2 is part of an end elevation, and Fig. 3 part of a side elevation, of the'casing. Fig. 4 is a cross-section taken through the cylinder and valve-ports at that end of the cylinders which is toward the inlet end of the casing. Fig. 5 is a similar section through the ports at the opposite end of the cylinders. Fig. 6 is a lefthand end view'with the casing removed. Fig. 7 is alongitudinal section of one of the valves, and Fig. S a longitudinal section of one of the cylinders. Fig. 9 is a longitudinal section of one of the cylinders and the valve of the next cylinder, showing the way in which the piston-rod actuates the valve. Fig. IO is a cross-section through the line c d, Fig. 9. Figs. Il to l5 show a modified form of theh meter in which endwise-moving valves are used in place of valves which have a partial rotation given to them. Fig. Il is a crosssection through the cylinders. Figs. I2 and I3 show the end division-plates of the casing. Fig. 14E -is a longitudinal section through a pair of the valves, and Fig. 15 a longitudinal section through one of the cylinders.

In Figs. I to l() A is the outer casing of the meter, closed at its ends by end covers A A2.

two disks B O. One end of each cylinder isclosed by the disk B. The other end is closed by a third disk D. The edges of the disk fit into grooves formed around the interior of the casing, as shown in Fig. I. The casing is divided longitudinally into two parts, as shown at Fig. 3, to allow ofthe edges of the disks being so inserted into the grooves.

E E E are three radial projections standing outward, one from each cylinder, and fitting against the interior of the casing. These divide the space between the disks B and C and the space between the disks O and D each into three compartments. The cylinder l opens through a port I into one of these compartments F at its end which is toward the inlet end of the casing, the cylinder 2 similarly opens through a port 2X into a compartment F2, and the cylinder 3 through a port 3X into a compartment F2. At the opposite end the cylinder l opens through a port 1 into a compartment marked Gt, the cylinder 2 opens through a port 2XX into a compartment G2, and the cylinder 3 through a port SXX into a compartment G3. The valve-shell la, which passes through the compartments F G', has also a port 1AX formed through it opening into the compartment F and a similar port IMX opening into the compartment G. Simi-` larly the valve-shells 2L and. 3 have ports 21X 2a and 3a* SMX opening into the compartments F2 F3 and G2 G2. Into each valve-shell ts one of the hollow cylindrical plugs H', H2, and H3. Each plug is divided longitudinally by a partition into two channels. One of these (marked at) is open at its end which is toward the inlet end of the casing, so that water can always pass freely into it from this end of the casing. The opposite end oi' this channel is closed. The other channel y is closed at the inlet end and open at the outlet end. Each end of each plug has two ports formed in it, one, at the inlet end opening from the channel zr, the other, y', opening from the channel y. At the outlet end there are similar ports .r2 y2.

IOO

By giving somewhat less than a half-turn to the valve-plug Il either one or other of its ports rc y can be brought opposite to the port ln and the ports 0:2 y2 opposite to the port FXX and so that when x' is opposite to lJX y2 is opposite to ln and when y is opposite to ln :r2 is opposite to llXX. Similarly the valveplugs H2 H3 when they have nearly a halfturn given to them have their ports brought opposite to the ports 2fX 33X 2 SMX.

Each valve-plug l-I H2 H3 has a cylindrical stem extending from it, in which are spiral grooves HX. Each stem is embraced by a collar at the end oi' an arm I, which extends from the en d of one of the piston-rods. Spherical balls l', which lodge in corresponding hemispherical recesses on the inside of the collar, project from these recesses into the grooves HX, or pins might be used in place of balls. In this way when the piston ot' any cylinder is moved from one end of the cylind er to the other the valve which is operated by the piston-rod of that piston has nearly half a turn given to it. The piston-rod of cylinder l gives motion in this Way to valve H2, the piston-rod of cylinder 2 gives motion to valve H3, and the piston-rod of cylinder 3 to valve H.

In the position of the parts as shown at Figs. l, 4, and 5 the piston of the cylinder 1 has completed its stroke toward the outlet end, the piston of the cylinder 2 is moving toward the inlet end and is shifting the valve H3 into position to cause the piston of cylinder 3 to move from the inlet end toward the outlet end, and so on continuously. As seen in Fig. 1l, the valve H is at this time in such a position that its inlet-channel w opens through its port ai into the compartment F and is in communication through this compartment with the port l at the end of the cylinder l, which is next the inlet end of the casing, while at the same time, as seen in Fig. 5, the outlet-channel g/ of the same valve is open to the opposite end of the cylinder l. rFhe same figures also show that the inlet-channel a; of valve H2 is open to that end of cylinder 2 which is toward the outlet end of the casing and the outlet-channelg/is open to the opposite end of the cylinder. The piston of this cylinder is therefore traveling toward the inlet end of the casing. The valve H3 is in an intermediate position, passing from one of its extreme positions to the other to come into position to cause the piston of cylinder 3 to travel away from the end of the cylinder which is toward the inlet end of the casing, and when the piston of cylinder 3 travels in this direction it shifts valve H. Thus when the piston oi' cylinder l has moved to the right-hand end of the cylinder the piston of the cylinder 2 moves toward the left-hand end of that cylinder, and afterward the piston of the cylinder 3 moves toward the righthand end, and next the piston of cylinder l travels to the left-hand end, and so on continuously.

The to-and-fro movement of the piston-rod of one or other of the cylinders is arranged to give motion to recording mechanism to record the number of movements made byit. In Fig. l the piston-rod of cylinder 2 is shown to have a pin K extending from it to come alternately against pins LL on a lever L and give to this levera rocking movement, and the lever, by a pawl Lwhich it carries, gives a step-by-step rotating movement to a ratchetwheel M on the axis of the iirst wheel of a train of recording-wheels.

In place of using only three cylinders a greater odd number might be used and be arranged to act in precisely the same way.

ln the modification shown at Figs. ll to 15 three pairs of endwise-movin g valves are used instead of the three rotating valves H H2 H3. The cylinders l 2 3 and the outer casing,with its transverse partitions B C D, are constructed in the same way as in the iigures before described. N N' N2 N3 N4 N5 are the three pairs of valves. One valve of each pair is closed at the end which is toward the inlet. The other is closed at the end which is toward the outlet. The two valves in each pair are connected together at N Xand receive an endwise to-and-fro movement from one arm of a lever O, the other arm of which is moved to and fro by the piston-rod of one or other of the cylinders. The action of the valves is just the same as the action of the rotary valves. Vhen the inlet-valve of one pairsay N-is open through one of its ports with one end of a cylinder l, the outlet-valve N of the same pair is open to the other end of the cylinder, and the piston-rod of cylinder l gives motion tothe valves of cylinder 2 and the piston-rod of cylinder 2 to the valves of 3, and so on. Other forms of valves might be used.

l. The combination of cylinders l, 2, 3 compartments F F2 F3 and G' G2 G3 with which the opposite ends of the cylinders communicate partially-rotating Valves H H2 Il3 by which when one compartment F F2 F3 is put into communication with the inlet its corresponding compartment G' G2 G3 is put into communication with the outlet and mechanism to which the rotating valve Il2 of cylinder 2 is operated by the piston of cylinder l and the valve Il3 of the cylinder 3 by the piston of cylinder 2 and the valve H of cylinder l by the piston of the cylinder 3.

2. The combination of the outer casing IOO IIO

having an inlet at one end and an outlet at der and mechanism for recording the movement of the pistons.

3. The combination of the outer casing having an inlet at one end an outlet at the other, three partitions extending across the casing, the space between the central partition and one end partition divided into as many compartments as there are cylinders and between the central partition and the other end partition into a corresponding number of compartments, a cylinder and cylindrical valve-shell and valve extending through each pair of compartments a screw or spirallygrooved stem extending from one end of each valve, a collar surrounding and engaging with each stem and an arm connectingthe piston-rod of one cylinder with the collar which engages with the stem of the valve of the next cylinder and mechanism for recording the movement of the pistons.

4. The combination of the outer casing having an inlet at one end an outlet at the other, three partitions extending across the casing, the space between the central partition and one end partition divided into as many compartments as there are cylinders and between the central partition and the other end partition into a corresponding numloer of compartments a cylinder and cylindrical valve-shell extending thro ugh each pair of compartments, a cylindrical valve fitting within each valve-shell a longitudinal partition dividing each cylindrical valve into two channels one closed at the inlet the other at the outlet end, a port leading out from each channel near each end of the valve and ports near the ends of the valve-shell in such a position that when a port at one end of the valve and leading from its inlet-channel is opposite to the port near one end of the Valvesliell a port opening into the outlet-channel of the valve is opposite to the other port in the opposite end of the valve-shell.

ARCHIBALD E. DOBBS.

Witnesses:

FREDERICK OARPMAIL, lW. M. HARRIS. 

